| Date | Age | Event | Bishop | Title | Current Title | 
|---|
| 3 Sep | 73.8 | Died | Antonio De Cumis † | Bishop of Catanzaro, Italy | 
| 4 Sep | 37.4 | Appointed | Antonio Maria Sacconi, O.F.M. Obs. † | Vicar Apostolic of Hukwang, Shansi [Shanxi], and Shensi [Shaanxi], China | 
| 37.4 | Appointed | Antonio Maria Sacconi, O.F.M. Obs. † | Titular Bishop of Domitiopolis | Vicar Apostolic of Hukwang, Shansi [Shanxi], and Shensi [Shaanxi], China | 
| 9 Sep | 41.4 | Selected | Vittorio Maria Baldassare Gaetano Costa d’Arignano † | Cardinal, Archbishop of Torino {Turin}, Italy | 
| 46.6 | Selected | Giovanni Battista Rivellini † | Archbishop of Brindisi, Italy | 
| 11 Sep | 52.2 | Resigned | Giovanni Battista Filipponi Tenderini † | Bishop of Anagni, Italy | Bishop Emeritus | 
| 13 Sep | 51.5 | Ordained Bishop | Emmanuel Felix Soares (de Santa Catarina), O.C.D. † | Bishop of Cochin, India | Archbishop of Goa, India | 
| 54.6 | Ordained Bishop | Manuel Tavares Coutinho da Silva † | Bishop of Portalegre, Portugal | 
| 17 Sep |  | Born | Giuseppe Riccardi † |  | Bishop of Boiano, Italy | 
| 19 Sep | 23.1 | Ordained Priest | Ladislas Adam Prosper Burzyński, O.F.M. Ref. † | Priest of Order of Reformed Friars Minor | Bishop of Sandomierz, Poland | 
| 24.9 | Ordained Priest | Pier Camillo de Carolis † | Priest | Bishop of Città della Pieve, Italy | 
| 22.8 | Ordained Priest | Giovanni Battista Lambruschini † | Priest | Bishop of Orvieto, Italy | 
| 86.6 | Died | Francisco Mendo Trigoso † | Bishop of Viseu, Portugal | 
| 25.1 | Ordained Priest | Giovanni-Antonio Niccola (Nicola) † | Priest | Bishop of Alba (Pompea), Italy | 
| 22.2 | Ordained Deacon | Josef Chrysostomus Pauer † | Deacon of Clerics Regular of St. Paul | Bishop of Sankt Pölten, Austria | 
| 24.6 | Ordained Priest | Giovanni Francesco Toppia † | Priest | Bishop of Vigevano, Italy | 
| 20 Sep | 23.1 | Ordained Priest | György Kurbély † | Priest | Bishop of Veszprém, Hungary | 
| 21 Sep |  | Born | Mateo José González Rubio † |  | Auxiliary Bishop of Popayán, Colombia | 
| 26 Sep |  | Appointed | Francesco Antonio Fracchia † | Vicar Apostolic of Constantinople, Turkey | 
|  | Appointed | Francesco Antonio Fracchia † | Titular Bishop of Theodosiopolis in Armenia | Vicar Apostolic of Constantinople, Turkey | 
| 27 Sep |  | Ordained Bishop | Francesco Antonio Fracchia † | Titular Bishop of Theodosiopolis in Armenia | Vicar Apostolic of Constantinople, Turkey | 
| 43.3 | Ordained Bishop | Antoni Narzymski † | Titular Bishop of Evaria | Auxiliary Bishop of Płock, Poland | 
| 28 Sep | 36.5 | Appointed | Cirillo Antonini † | Bishop of Anagni, Italy | 
| 39.3 | Appointed | Edmund Maria Josef Artz von und zu Vasegg † | Auxiliary Bishop of Wien {Vienna}, Austria | 
| 39.3 | Appointed | Edmund Maria Josef Artz von und zu Vasegg † | Titular Bishop of Teos | Auxiliary Bishop of Wien {Vienna}, Austria | 
| 54.2 | Appointed | Johann Adam Behr † | Auxiliary Bishop of Bamberg, Germany | 
| 54.2 | Appointed | Johann Adam Behr † | Titular Bishop of Hemeria (Himeria) | Auxiliary Bishop of Bamberg, Germany | 
| 56.2 | Appointed | Bernardo Bocchini, O.F.M. Cap. † | Bishop of Cefalonia e Zante, Greece | 
| 41.5 | Confirmed | Vittorio Maria Baldassare Gaetano Costa d’Arignano † | Cardinal, Archbishop of Torino {Turin}, Italy | 
| 32.3 | Appointed | Girolamo Luigi Crivelli † | Bishop of Nepi e Sutri, Italy | 
| 61.2 | Appointed | Diodato Maria Difnico, C.R.L. † | Bishop of Krk (Veglia), Croatia | 
| 43.9 | Appointed | Angelo Franceschi † | Archbishop of Pisa, Italy | 
| 56.2 | Appointed | Pier Luigi Galletti, O.S.B. † | Titular Bishop of Cyrene | 
| 57.2 | Appointed | Ferdynand Onufry Kicki † | Coadjutor Archbishop of Lviv, Ukraine | Archbishop | 
| 55.7 | Appointed | Juan Manuel Moscoso y Peralta † | Bishop of Cuzco, Peru | Archbishop of Granada, Spain | 
| 41.2 | Appointed | Franciscus de Paula Paternò Castello † | Titular Bishop of Europus | 
| 53.3 | Appointed | Juan Antonio Sánchez, O.F.M. Disc. † | Bishop of Linares o Nueva León, Nuevo León, México | 
| 51.6 | Confirmed | José Campos Julián, O.C.D. † | Bishop of Córdoba (Tucumán), Argentina | Archbishop of La Plata o Charcas, Bolivia | 
| 30.1 | Appointed | Michał Roman Sierakowski † | Auxiliary Bishop of Przemyśl, Poland | 
| 30.1 | Appointed | Michał Roman Sierakowski † | Titular Bishop of Prusa | Auxiliary Bishop of Przemyśl, Poland | 
| 30 Sep | 70.9 | Died | Domenico Poltri † | Bishop of San Miniato, Italy | 
| 1 Oct | 70.1 | Died | Gaetano Fantuzzi † | Cardinal, Cardinal-Priest of San Pietro in Vincoli | 
| 2 Oct |  | Born | Giambattista Guerra † |  | Bishop of Bertinoro, Italy | 
|  | Born | Johann Peter Mirer † |  | Bishop of Sankt Gallen, Switzerland | 
| 4 Oct | 56.3 | Ordained Bishop | Bernardo Bocchini, O.F.M. Cap. † | Bishop of Cefalonia e Zante, Greece | 
| 32.3 | Ordained Bishop | Girolamo Luigi Crivelli † | Bishop of Nepi e Sutri, Italy | 
| 61.2 | Ordained Bishop | Diodato Maria Difnico, C.R.L. † | Bishop of Krk (Veglia), Croatia | 
| 56.2 | Ordained Bishop | Pier Luigi Galletti, O.S.B. † | Titular Bishop of Cyrene | 
| 46.1 | Ordained Bishop | Johann Karl von Hohenzollern-Hechingen † | Titular Bishop of Dibon (Dibona) | Bishop of Warmia (Ermland), Poland | 
| 8 Oct |  | Born | Hyacinthe-Louis de Quélen † |  | Archbishop of Paris, France | 
| 11 Oct | 36.5 | Ordained Bishop | Cirillo Antonini † | Bishop of Anagni, Italy | 
| 18 Oct | 45.6 | Ordained Bishop | Nathaniel Johann Heinrich Bürger, O.F.M. Ref. † | Titular Bishop of Dercos (Dercus) | Vicar Apostolic of Nanking [Nanjing], China | 
| 25 Oct |  | Born | Joaquín Briz, O.P. † |  | Bishop of Segovia, Spain | 
| 17.0 | Professed | Hilarión Diéz Fernández, O.S.A. † | Member of Order of St. Augustine | Archbishop of Manila, Philippines | 
| 25.7 | Ordained Priest | Bernard-Claude Panet † | Priest of Québec, Canada | Archbishop of Québec, Canada | 
| 28 Oct | 54.3 | Ordained Bishop | Johann Adam Behr † | Titular Bishop of Hemeria (Himeria) | Auxiliary Bishop of Bamberg, Germany | 
| 29 Oct | 18.3 | Solemn Vows | Antonio Maria (Giovanni Battista) Grandi, B. † | Member of Clerics Regular of St. Paul | Secretary of the Congregation for Extraordinary Ecclesiastical Affairs | 
| 8 Nov | 56.0 | Installed | Giuseppe Maria Langosco-Stroppiana † | Bishop of Alba (Pompea), Italy | 
|  | Born | Joseph Signay † |  | Archbishop of Québec, Canada | 
| 14 Nov |  | Born | Franz Xaver von Schwäbl † |  | Bishop of Regensburg, Germany | 
| 15 Nov | 43.2 | Selected | Laurent-Michel Eon de Cély † | Bishop of Apt, France | Bishop Emeritus | 
| 22 Nov | 41.3 | Ordained Bishop | August Franz von Strauß (Strauss) † | Titular Bishop of Samaria | Auxiliary Bishop of Mainz, Germany | 
| 30 Nov | 54.8 | Installed | Manuel Tavares Coutinho da Silva † | Bishop of Portalegre, Portugal | 
| 2 Dec | 61.1 | Selected | Giovanni Antonio Arras Minutili † | Bishop of Ampurias e Civita, Italy | 
|  | Born | Giuseppe Maria Mazzetti, O. Carm. † |  | Bishop Emeritus of Aquino, Sora, e Pontecorvo, Italy | 
| 3 Dec | 90.8 | Died | Thomas Fabiani † | Bishop of Belcastro, Italy | 
| 72.4 | Died | James Grant † | Vicar Apostolic of Lowland District, Scotland, Great Britain | 
| 49.2 | Succeeded | George Hay † | Vicar Apostolic of Lowland District, Scotland, Great Britain | Vicar Apostolic Emeritus | 
| 5 Dec |  | Born | José Eusebio Colombres † |  | Bishop-Elect of Salta, Argentina | 
| 8 Dec | 30.3 | Ordained Bishop | Michał Roman Sierakowski † | Titular Bishop of Prusa | Auxiliary Bishop of Przemyśl, Poland | 
| 9 Dec | 59.3 | Resigned | Inácio de São Caetano, O.C.D. † | Bishop of Penafiel, Portugal | Bishop Emeritus | 
| 10 Dec | 78.9 | Died | Theophilus MacCartan † | Bishop of Down and Connor, Ireland | 
|  | Born | Antonio Francesco Orioli, O.F.M. Conv. † |  | Cardinal, Prefect of the Congregation of Bishops and Regulars | 
| 11 Dec | 63.6 | Resigned | Félicien Bocon de La Merlière † | Bishop of Apt, France | Bishop Emeritus | 
| 13 Dec | 39.5 | Ordained Bishop | Edmund Maria Josef Artz von und zu Vasegg † | Titular Bishop of Teos | Auxiliary Bishop of Wien {Vienna}, Austria | 
|  | Born | Giovanni Maria Bisignani † |  | Titular Bishop of Aegae | 
| 14 Dec | 58.4 | Appointed | Agustín de Alvarado y Castillo † | Archbishop (Personal Title) of Ciudad Rodrigo, Spain | Bishop | 
| 55.5 | Appointed | Antonio Caballero y Góngora † | Archbishop of Santafé en Nueva Granada, Colombia | Bishop of Córdoba, Spain | 
| 58.7 | Appointed | Giuseppe Coppula † | Bishop of Lipari, Italy | 
| 46.4 | Appointed | Roberto Costaguti † | Bishop of Sansepolcro (Borgo San Sepolcro), Italy | 
| 44.5 | Appointed | Luca Nicola de Luca † | Bishop of Muro Lucano, Italy | Bishop Emeritus of Trivento, Italy | 
| 43.2 | Confirmed | Laurent-Michel Eon de Cély † | Bishop of Apt, France | Bishop Emeritus | 
| 49.7 | Appointed | Juan Antonio Gallego y Orbigo, O.F.M. Disc. † | Bishop of Nueva Caceres, Philippines | Archbishop of Manila, Philippines | 
| 39.3 | Appointed | Niccolò Marcacci † | Bishop of Arezzo, Italy | 
| 59.1 | Appointed | Lazzaro Opizio Pallavicini † | Cardinal-Priest of San Pietro in Vincoli | Cardinal, Secretary of State | 
| 46.9 | Confirmed | Giovanni Battista Rivellini † | Archbishop of Brindisi, Italy | 
| 59.3 | Appointed | Inácio de São Caetano, O.C.D. † | Titular Archbishop of Thessalonica | Bishop Emeritus of Penafiel, Portugal | 
| 38.9 | Appointed | Salvatore Vecchioni, C.O. † | Bishop of Anglona-Tursi, Italy | 
| 19 Dec | 22.8 | Ordained Priest | Baldassare Leone † | Priest | Bishop of Agrigento (Girgenti), Italy | 
| 23.6 | Ordained Priest | Stanislao Lucchesi † | Priest | Bishop of Foligno, Italy | 
| 23.4 | Ordained Priest | Gaudenzio Giovanni Antonio Patrignani, O.F.M. Obs. † | Priest of Order of Observant Friars Minor | Bishop of Ferentino, Italy | 
| 39.9 | Appointed | Patrick Joseph Plunkett † | Bishop of Meath, Ireland | 
| 25.4 | Ordained Priest | Johann Adam Rieger † | Priest of Mainz, Germany | Bishop of Fulda, Germany | 
| 23.6 | Ordained Priest | Pierre-Marin Rouph de Varicourt † | Priest | Bishop of Orléans, France | 
| 25.8 | Ordained Priest | Alessandro Tommasini † | Priest | Archbishop of Reggio Calabria, Italy | 
| 24.3 | Ordained Priest | Adrianus van Dongen † | Priest of Antwerpen {Antwerp, Anvers}, Belgium | Vicar Apostolic of Breda, Netherlands | 
| 20 Dec | 58.8 | Ordained Bishop | Giuseppe Coppula † | Bishop of Lipari, Italy | 
| 46.5 | Ordained Bishop | Roberto Costaguti † | Bishop of Sansepolcro (Borgo San Sepolcro), Italy | 
| 44.6 | Ordained Bishop | Luca Nicola de Luca † | Bishop of Muro Lucano, Italy | Bishop Emeritus of Trivento, Italy | 
| 46.9 | Ordained Bishop | Giovanni Battista Rivellini † | Archbishop of Brindisi, Italy | 
| 24.0 | Ordained Deacon | Gregor Tarkovič (Tárkovits) † | Deacon of Mukachevo (Munkács) (Ruthenian), Ukraine | Bishop of Prešov (Prjašev, Eperjes) (Slovak), Slovakia | 
| 38.9 | Ordained Bishop | Salvatore Vecchioni, C.O. † | Bishop of Anglona-Tursi, Italy | 
| 26 Dec |  | Born | Etienne-Bruno-Marie d’Arbou † |  | Bishop Emeritus of Bayonne, France | 
| 72.8 | Died | John Joseph Hornyold † | Vicar Apostolic of Midland District, England, Great Britain | 
| 51.4 | Succeeded | Thomas Joseph Talbot † | Vicar Apostolic of Midland District, England, Great Britain | 
| 30 Dec | 60.2 | Selected | João António Barbosa Soares † | Bishop of Viseu, Portugal | 
| 48.2 | Selected | Vicente do Espirito Santo, O.A.D. † | Bishop of São Tomé e Príncipe | Prelate of Goiás, Brazil | 
| 56.1 | Selected | Domingos da Encarnação Pontével, O.P. † | Bishop of Mariana, Brazil | 
| 52.1 | Selected | Francisco de São Simão, O.F.M. Ref. † | Bishop of Santiago de Cabo Verde | 
| 31 Dec |  | Born | Francesco Iovinelli, C.M. † |  | Bishop of Bovino, Italy | 
| 49.6 | Succeeded | Ignaz Franz Stanislaus von Spaur † | Bishop of Brixen {Bressanone}, Italy | 
| 82.6 | Died | Leopold Maria Joseph von Spaur † | Bishop of Brixen {Bressanone}, Italy |